Prepare v0.1.1 release publication

[jmcte]

Summary

• remove the obsolete Phase A/Epic: Trustworthy single-account MailPlus Intelligence roadmap #98 blocker language from the v0.1.1 changelog and versioning guide
• retain the 0.1.1 package version and v0.1.1 tag contract while documenting the remaining immutable-tag publication step
• ensure generated GitHub release notes no longer claim a completed dependency is blocking publication

Governing Issue

Closes #127

Validation

• python3.12 -m unittest discover -s tests -p 'test_docs_smoke.py' -v
• python3.12 -m unittest discover -s tests -p 'test_release_artifacts.py' -v
• bash scripts/release/dry-run.sh --skip-fast-checks in an isolated copy of this patched tree
• Required PR checks are expected to satisfy CI Gate
• Skipped checks are explained below

The release dry-run skipped its duplicate fast-check phase only because the current main full validation is already green and this PR changes documentation only; it still built, validated, rebuilt, and smoke-tested the v0.1.1 wheel and source distribution.

Bootstrap Governance

• Changes are scoped to the linked issue
• Contributor or PR guidance changes are reflected in CONTRIBUTING.md, .github/PULL_REQUEST_TEMPLATE.md, and docs/bootstrap/onboarding.md when applicable
• PR author enabled squash auto-merge; independent code-owner approval remains required
• No real secrets, runtime auth, or machine-local env files are committed

Merge Automation

• PR author enabled squash auto-merge; GitHub will merge after CI and independent approval

Notes

• Risk: low. This is an accuracy-only release-documentation correction; no package code, version, workflow behavior, or artifacts change.

[pheidon]

Approved. I checked the live PR state and this is a docs-only release-prep correction: only CHANGELOG.md and docs/versioning.md change. PR Fast CI is green, the branch is current with main, auto-merge is enabled, issue #98 is closed/completed with its child work checked off, and the package/version/tag contract remains aligned at 0.1.1 / v0.1.1. The release workflow extracts notes from the matching changelog section, and this PR removes the stale blocker language before the immutable tag is created.